Table 4.

Summary of inhibitory activity of nisin P and A.

Strain	Activity nisin P	Activity nisin A	MIC nisin P	MIC nisin A
S. enterica LT2	−	−	−	−
E. coli ATCC 25922	−	−	−	−
C. sakazakii NCTC 11467	−	−	−	−
C. perfringens NCTC 3110a	−	−	−	−
L. innocua NCTC 11288	−	−	−	−
L. bulgaricus LMG 6901	+++	+++	0.01 μM	0.0005 μM
L. monocytogenes 3564	−	++	−	−
E. faecium 4955	++	+++	0.265 μM	0.1 μM
E. faecalis LM1	−	++	−	6.5 μM
E. faecalis LM4	−	++	−	6.5 μM
P. aeruginosa 2064 APC	−	−	−	−
S. aureus 7016	++	+++	0.531 μM	0.05 μM
S. capitis 20G	++	+++	8.5 μM	0.812 μM
S. simulans 2B10	++	+++	0.531 μM	0.325 μM
S. epidermidis 99	+	+++	34 μM	0.812 μM
L. gallinarum Lac43	+	++	8.5 μM	0.812 μM
L. frumenti Lac53	+++	+++	1.06 μM	0.27 μM
L. reuteri Lac54	+	++	8.5 μM	0.812 μM
L. paracasei LacR1	++	+++	17 μM	1.62 μM
L. plantarum Lac 29	+++	+++	1.06 μM	0.1 μM
L. mucosae Lac28	+++	+++	1.06 μM	0.54 μM
L. reuteri Lac 56	+	++	69 μM	3.25 μM

^aC. perfringens NCTC 3110 has usually been reported to be sensitive to nisin A.

−, No activity; +, 1 mm radius inhibition zone; ++, 1–5 mm radius inhibition zone; +++, >5 mm inhibition zone.